EP4230054A1 - Procédé d'extrusion de concentré ou d'isolat de protéines liquides - Google Patents

Procédé d'extrusion de concentré ou d'isolat de protéines liquides Download PDF

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Publication number
EP4230054A1
EP4230054A1 EP22157764.6A EP22157764A EP4230054A1 EP 4230054 A1 EP4230054 A1 EP 4230054A1 EP 22157764 A EP22157764 A EP 22157764A EP 4230054 A1 EP4230054 A1 EP 4230054A1
Authority
EP
European Patent Office
Prior art keywords
slurry
protein
extruder
unit
preparing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22157764.6A
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German (de)
English (en)
Inventor
Christian Kern
William Robert MITCHELL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Buehler AG
Original Assignee
Buehler AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Buehler AG filed Critical Buehler AG
Priority to EP22157764.6A priority Critical patent/EP4230054A1/fr
Priority to PCT/EP2023/054319 priority patent/WO2023156681A1/fr
Priority to CN202380020720.1A priority patent/CN118678886A/zh
Publication of EP4230054A1 publication Critical patent/EP4230054A1/fr
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23J—PROTEIN COMPOSITIONS FOR FOODSTUFFS; WORKING-UP PROTEINS FOR FOODSTUFFS; PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS
    • A23J3/00—Working-up of proteins for foodstuffs
    • A23J3/22—Working-up of proteins for foodstuffs by texturising
    • A23J3/225—Texturised simulated foods with high protein content
    • A23J3/227—Meat-like textured foods
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23J—PROTEIN COMPOSITIONS FOR FOODSTUFFS; WORKING-UP PROTEINS FOR FOODSTUFFS; PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS
    • A23J3/00—Working-up of proteins for foodstuffs
    • A23J3/14—Vegetable proteins
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23J—PROTEIN COMPOSITIONS FOR FOODSTUFFS; WORKING-UP PROTEINS FOR FOODSTUFFS; PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS
    • A23J3/00—Working-up of proteins for foodstuffs
    • A23J3/14—Vegetable proteins
    • A23J3/16—Vegetable proteins from soybean
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23J—PROTEIN COMPOSITIONS FOR FOODSTUFFS; WORKING-UP PROTEINS FOR FOODSTUFFS; PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS
    • A23J3/00—Working-up of proteins for foodstuffs
    • A23J3/22—Working-up of proteins for foodstuffs by texturising
    • A23J3/26—Working-up of proteins for foodstuffs by texturising using extrusion or expansion
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23P—SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
    • A23P30/00—Shaping or working of foodstuffs characterised by the process or apparatus
    • A23P30/20—Extruding

Definitions

  • the present invention is related to a process for producing a protein-containing product, preferably a product that imitates the properties of meat, poultry, fish, seafood, and products derived therefrom.
  • the present invention is also related to a system for performing such a process.
  • protein materials preferably from vegetable sources
  • raw materials for example soybeans, yellow pea, etc.
  • the thus obtained protein materials are usually packaged in their final form intended for storage and/or shipment as a spray-dried powder. These powders can then be sold to various customers to be rehydrated in water with other ingredients in an extruder, in order to produce the final product.
  • the drying process itself is extremely costly and disadvantageous in terms of CO 2 emissions.
  • the energy consumption by the drying process is rather high to remove water from the proteins. This is commercially disadvantageous, particularly since the obtained spray-dried powders will typically be rehydrated shortly afterwards anyway for further processing into a protein-containing product.
  • drying process itself involves high temperatures which may degrade the quality of the proteins themselves - in terms of nutritional, taste and functional quality.
  • Spray dryers themselves require enormous infrastructure, sometimes with large spray drying towers requiring their own multi-story buildings. There is also a high risk of explosion when dealing with spray dryers, particularly if the appropriate safety measures are not respected. Spray-dry towers have thus to meet strict safety standards.
  • spray-drying involves the risk of damaging the treated protein material, limiting their functionality in a subsequent texturization process (e.g. extrusion, shear cell technology, and the like).
  • the present invention is related to a process for producing a protein-containing product, comprising the steps
  • a protein-containing product preferably a product that imitates the properties of meat, poultry, fish, seafood, and products derived therefrom
  • a slurry comprising a protein from a protein source
  • step a) of the process of the present invention a slurry comprising a protein from a protein source is prepared.
  • protein source refers to any naturally occurring protein source, in particular organisms or parts thereof that comprise at least one protein selected from the group consisting of legume based protein, cereal based protein, microalgae, a fermented biomass comprising an algae based protein or a mycoprotein or an ingredient produced by precision fermentation, seed and/or nut-based protein, or combinations thereof, for example, plant proteins selected from the group consisting of quinoa protein, buckwheat protein, millet protein, oat protein, rice protein, hemp protein, peanut protein, almond protein, cashew protein, coconut protein, lentil protein, water lentil protein, soy protein, faba bean protein, pea protein, chickpea protein, lupin protein, canola protein, sunflower protein, pumkin seed protein, chia seed protein, watermelon seed protein, flax seed protein, potato protein, microalgae protein, and combinations thereof.
  • Preferred protein sources are pea protein and soy protein.
  • Said protein source is processed in a conventional way.
  • a part of a respective organism such as a whole seed, is cleaned, dried, cracked and/or dehulled, whatever is appropriate.
  • the thus obtained dehulled seed may be subjected to steps of separating components such as vegetable oil, for example a lipid separation by pressing or a solvent lipid extraction step, and of comminuting the thus purified material, for example by a milling step.
  • the thus obtained protein material may be processed into a protein concentrate or a protein isolate, preferably a plant protein isolate or a plant protein concentrate.
  • Protein isolates are protein enriched fractions in which the protein content is as high as 80 or more wt.-%, based on the entire amount of the isolate. Protein isolates may be obtained from the material processed as described above by a protein extraction step such as acid or alkali precipitation, membrane filtration, centrifugation, and concentration such as decantation.
  • a protein extraction step such as acid or alkali precipitation, membrane filtration, centrifugation, and concentration such as decantation.
  • Protein concentrates are protein enriched fractions, wherein the content of protein is not as high as in isolates.
  • the protein content is typically in the range of 50-70 wt.-%, based on the entire amount of the concentrate.
  • a slurry comprises a liquid protein concentrate, a liquid protein isolate, a suspension of solid particles such as protein material in a liquid, preferably water, an emulsion containing proteins and oils, and combinations thereof.
  • a process line comprising devices such as a dehulling and/or milling device, a decanting device, and a heating device may be used.
  • the thus obtained slurry is not subjected to any spray-drying step, as normally would be conducted to obtain a dried powder for storage and shipment.
  • the slurry can be introduced as it is into an extruder, or in a preconditioner and then into an extruder, for further processing, wherein said procedure results in a protein-containing product, preferably a product that imitates the properties of meat, poultry, fish, seafood, and products derived therefrom, having desired properties.
  • the slurry to be introduced into an extruder may be a high-moisture slurry or a low-moisture slurry, wherein according to the present invention a high-moisture slurry is preferred.
  • a high-moisture slurry is defined as a slurry having a moisture content, preferably water content, of at least 30 wt.-%, preferably 30-90 wt.-%, more preferably preferably 40-70 wt.-%, especially preferred 50-60 wt.-%, based on the entire weight of the slurry.
  • the total solids content, preferably the protein content, of a high-moisture slurry is not more than 70 wt.-%, preferably 70-10 wt.-%, more preferably preferably 60-30 wt.-%, especially preferred 50-40 wt.-%, based on the entire weight of the slurry.
  • a low-moisture slurry is defined as a slurry having a moisture content, preferably water content, in the range from 5-30 wt.-%, preferably 10-25 wt.-%, especially preferred 10-20 wt.-%, based on the entire weight of the slurry.
  • the total solids content, preferably the protein content, of a low-moisture slurry is in the range from 95-70 wt.-%, preferably 90-75 wt.-%, especially preferred 90-80 wt.-%, based on the entire weight of the slurry.
  • step b) of the process of the present invention said slurry is inserted into an extruder.
  • the slurry may first be inserted into a pre-conditioner, for performing known pre-conditioning operation. From the pre-conditioner, the slurry is then transferred into the extruder.
  • the slurry is preferably conveyed through a line, such as a tube, into the extruder or pre-conditioner.
  • a slurry pump for example a vacuum-assisted twin screw pump, and/or additional valves and/or detectors such as flow meters may be provided in these pipes or hoses.
  • the slurry is preferably conveyed through a line, such as a tube, into the extruder or pre-conditioner.
  • a conveying unit such as a positive displacement pump, preferably a vacuum pump or a twin-screw pump, is provided in said line so as to allow conveying of said more concentrated slurry.
  • a flow-measuring and control system may be additionally provided in said conveying lines, preferably selected from the group consisting of a flow meter and a loss-in-weight feeder, and a combination thereof.
  • a loss-in-weight feeder operates for example by putting a buffer tank onto a load cell and determine a loss in weight (due to the amount of slurry flowing out of the buffer tank into the extruder or preconditioner).
  • Preferably, at least two buffer tanks which are alternately operated may be provided, with one being emptied while the other being filled.
  • said lines through which the slurry is conveyed to the extruder or pre-conditioner are directly connected to a device that is conventionally used for processing a protein source.
  • said lines through which the slurry is conveyed to the extruder or pre-conditioner are directly connected to a process line comprising devices such as a dehulling and/or milling device, a decanting device, and a heating device.
  • said process line may also comprise a spray-drying unit.
  • a by-pass valve is provided in said process line before said spray-drying unit.
  • Said by-pass valve is connected to said extruder or preconditioner via a line discussed above.
  • An existing process line for preparing a dried protein powder can be simply retrofitted for the use according to the present invention by providing a by-pass valve before a spray-drying unit.
  • Said by-pass valve may be provided at a position in the process line where a high-moisture slurry is present, e.g. before a centrifugation device.
  • said by-pass valve may be provided at a position in the process line where a low-moisture slurry is present, e.g. directly before the spray-drying unit.
  • tempering means preferably heating means, may be provided to the conveying lines in order to ensure adequate flow of the slurry through the line and prevent any solidification or gel formation.
  • the composition of the slurry i.e. the ratio of moisture to total solids content
  • the composition of the slurry may be adjusted before the slurry is inserted into the extruder.
  • the necessity for such a procedure may be determined by analysing the slurry.
  • a monitoring step preferably an in-line monitoring step, of the slurry is performed before the slurry is inserted into the extruder.
  • monitoring steps are known in the art.
  • the slurry may be analysed by NIR (near infrared spectroscopy).
  • the monitoring step is preferably conducted in-line, for reasons of process economy. This is preferably done at or in the line through which the slurry is guided into the extruder. However, it is principally also possible to take a sample of the slurry and analyse the same off-line.
  • the slurry is modified by adding a liquid, preferably water, and/or solid material, preferably a solid protein material.
  • Adjustment of the slurry composition may be necessary in instances where the slurry itself cannot be concentrated to a desired or required high total solids content without problems concerning the transport of the slurry into the extruder.
  • the total solids content may be adjusted immediately before the entry into the extruder by dosing a powder of the same material (e.g. soy protein concentrate slurry with some soy protein concentrate powder) into the slurry.
  • Said powder may have been prepared using a spray-drying step.
  • a spray-drying step is mostly or completely bypassed.
  • 0-35%, preferably 5-25%, more preferably 10-20%, of the entire solids content of the final extruded product are dosed to the slurry in this step.
  • a secondary protein source may be added in powder form at this stage, which may not be the same as the protein in the slurry.
  • Said secondary protein source may be any of the proteins described above as protein source for the slurry.
  • Preferably, also said secondary protein source is not produced by spray drying.
  • a liquid Preferably, said liquid is water.
  • other food-approved liquids such as aqueous solutions comprising flavorant etc., for example bouillon, may be added.
  • liquid or powder to the slurry may be performed using conventional equipment. Since only a low amount of powder or liquid will typically be added at this stage, it is sufficient to use small-size and thus less expensive equipment for this purpose.
  • the slurry is subjected to an extrusion process in an extruder.
  • the slurry may first be led into a preconditioner.
  • Pre-conditioners and preconditioning of protein materials are known in the art.
  • Extruders are generally known in the art. Reference is made, for example, to WO 2012/158023 A1 or to the extruders, in particular twin-screw extruders, from Bühler. Such extruders preferably have an L/D ratio (total length to screw diameter) in the range from 20 to 60, preferably 25 to 50, and particularly preferably 25 to 40. According to the invention, the extruders are preferably operated at 100 to 1000 rpm, more preferably at 300 to 500 rpm, and particularly preferably 350 to 400 rpm.
  • a suitable extruder comprises at least one unit for inserting material, here a slurry, in a first section of the extruder.
  • the extruder can also have a water feed line and optionally a steam feed line.
  • the extruder comprises several sections, so-called barrel housings, in which material is processed and conveyed with the aid of at least one rotating screw.
  • the screw elements used in the different barrel housings may be the same, but preferably are different in order to establish different processing conditions in the barrel housings.
  • the number of barrel housings in the extruder used for the process of the present invention may be reduced, as compared to conventional extruders. This is because the slurry will preferably enter the extruder in a heated state from an upstream process line. It is then not necessary to heat the slurry as much as would be necessary in conventional extrusion process. As a result, preferably 1-4 barrel housings, more preferably 2-3 barrel housings, may be omitted, as compared to a conventional extruder.
  • an extruder to be used according to the present invention comprises 4-5 barrel housings. This has the advantage of cost-savings and savings in space required for the extruder.
  • the housing of the extruder is preferably temperature controlled.
  • the composition is kneaded under pressure (usually 1 to 60 bars, preferably 8 to 20 bars, and particularly preferably 10 to 15 bars) to form a homogeneous mixture. This usually involves an energy input of 10 to 120 Wh/kg, preferably 15 to 30 Wh/kg.
  • the slurry here is heated above the denaturation temperature of the protein, preferably to a temperature in the range from 80 to 180 °C, more preferably 120 to 160 °C, particularly preferably 130 to 150 °C, depending on the protein used.
  • the housing of the extruder is preferably temperature controlled.
  • the composition is kneaded under pressure (usually 1 to 60 bar, preferably 8 to 20 bar, and particularly preferably 10 to 15 bar) to form a homogeneous mixture. This usually involves an energy input of 10 to 120 Wh/kg, preferably 15 to 30 Wh/kg.
  • the cooling die is a long cooling die, i.e. it has a length (defined as the length of a product flow channel through the die) that exceeds its width (defined as the longest dimension of a planar section vertically to the product flow channel).
  • a distributor unit is provided between the extruder outlet and the cooling die.
  • Said distributor unit provides for a uniform distribution of the extrudate exiting from the extruder outlet to the one or more extrudate flow channels in the cooling die.
  • said distributor unit is releasably arranged so as to be exchangeable.
  • the distributor unit comprises a distribution element preferably designed as a cone.
  • the design of said distribution element as a circular cone is particularly advantageous. It is also possible to design the distribution element as a truncated cone, in particular as a truncated circular cone. In the case of a cone or circular cone design, the distribution element can also be realized with a spherical section-shaped tip, whereby the flow behavior can be specifically influenced and adapted to the extrudate. The back pressure into the extruder can be influenced and the extent of shear of the product can be affected.
  • the distribution element is preferably inserted in a recess of the distributor unit and is held in position in this recess by the pressure of the product flowing against the distribution element; interchangeability is particularly easy in this way.
  • an aperture can be arranged in the area of the end of the distributor unit facing away from the extruder and/or the end facing the extruder, with which the distribution channel(s) can be narrowed or constricted.
  • Such apertures can in turn be used to specifically influence product properties, in particular the fibrousness; long and short fibers can be produced, but also amorphous or homogeneous structures.
  • the thickness of the apertures in the main flow direction is in the range from 0.1 to 1.0 cm, preferably from 0.15 to 0.9 cm, particularly preferably from 0.2 to 0.8 cm.
  • the process according to the present invention can, in principle, be operated with a throughput in the range from 10 to 2000 kg/h.
  • the process is preferably performed with a throughput of 10 to 60 kg/h, preferably 20 to 50 kg/h and particularly preferably 30 to 40 kg/h, or alternatively with a throughput of 100 to 600 kg/h, preferably 300 to 600 kg/h and particularly preferably 400 to 550 kg/h, wherein the material in the extruder preferably has a residence time of at least 2 minutes, preferably at least 4 minutes.
  • the present invention is also related to a system for producing a protein-containing product, comprising
  • the devices and units of said system have already been discussed above.
  • the system is preferably provided for performing the method of the present invention described above.
  • said unit for inserting a slurry into the extruder is a vacuum filling system, preferably a vacuum filing system comprising a screw pump.
  • a vacuum filling system preferably a vacuum filing system comprising a screw pump.
  • This is particularly suitable for conveying low-moisture slurries into an extruder or a preconditioner.
  • the unit for inserting a slurry into the extruder comprises a flow-measuring and control system, preferably selected from the group consisting of a flow meter and a loss-in-weight feeder.
  • the extruder comprises 4-5 barrel housings.
  • the slurry is typically inserted into the extruder in a heated state, less barrel housings are required for heating. This has the advantage of cost-savings and savings in space required for the extruder.
  • the unit for inserting a slurry into the extruder comprises a dosing unit for adding a liquid, preferably water, and/or solid material, preferably protein material, to the slurry.
  • a dosing unit for adding a liquid, preferably water, and/or solid material, preferably protein material to the slurry.
  • Such dosing units are known. Since typically in the process of the present invention only small amounts of liquid or solid material are to be added to the slurry, it is sufficient to use a small-size and thus cheaper dosing unit for this purpose.
  • the system furthermore comprises a monitoring unit, preferably a NIR (Near Infrared) monitoring unit.
  • a monitoring unit preferably a NIR (Near Infrared) monitoring unit.
  • NIR Near Infrared
  • the slurry can be analysed and it can be determined whether any liquid or solid material should be added.
  • the at least one device for preparing a slurry comprising a protein from a protein source is a process line.
  • a process line has been discussed above.
  • a bypass valve is provided in said process line before a spray-drying unit.
  • Said by-pass valve is connected to said extruder or preconditioner via a unit for inserting a slurry and a line discussed above.
  • An existing process line for preparing a dried protein powder can be simply retrofitted for the use according to the present invention by providing a by-pass valve before a spray-drying unit.
  • Said by-pass valve may be provided at a position in the process line where a high-moisture slurry is present, e.g. before a centrifugation device.
  • said by-pass valve may be provided at a position in the process line where a low-moisture slurry is present, e.g. directly before the spray-drying unit.
  • said at least one device preferably said process line, for preparing a slurry is located in the same facility as the extruder, preferably in the same factory hall.
  • the lines for connecting said device and said extruder may then be accordingly short.
  • a storage unit may be provided into which said slurry can be inserted from said at least one device for preparing a slurry, preferably said process line.
  • Said storage unit may be, for example, a buffer tank.
  • said storage unit is connected to said unit for inserting a slurry.
  • Said connection may be releasable. This means that the storage unit may be alternately connected to said at least one device for preparing a slurry, preferably said process line, and to said unit for inserting a slurry.
  • said slurry When a slurry has been prepared in said at least one device for preparing a slurry, preferably said process line, said slurry can be inserted into said storage unit, preferably via a by-pass valve discussed above. Then, the storage unit may be relocated, e.g. by shipment, and connected to said unit for inserting a slurry, in order to insert said slurry into said unit and subsequently into an extruder or pre-conditioner. Preferably, the distance required for relocation of the storage unit should be kept as small as possible.
  • the present invention is also related to an extruder comprising a vacuum filling system, preferably a vacuum filing system comprising a screw pump, characterized in that the vacuum filling system is connected to a first barrel housing of the extruder directly or via a pre-conditioner.
  • the vacuum filling system is connected to a first barrel housing of the extruder, i.e. to the first barrel housing at the beginning of the extruder screw shaft(s) when considering the direction of product flow.
  • the present invention is also related to a method of retrofitting a process line for preparing a dried protein powder, comprising the step of providing a by-pass valve before a spray-drying unit, either at a position in the process line where a high-moisture slurry is present, for example before a centrifugation device, or at a position in the process line where a low-moisture slurry is present, for example directly before the spray-drying unit.
  • the process line has been discussed above. With the retrofitting, a spray-drying unit present in the process line can be circumvented, and the process line can be used for preparing a slurry instead of a dried powder.
  • FIG. 1 shows an exemplary illustration of an embodiment of the system 1 of the present invention.
  • a device for preparing a slurry 10, preferably a process line is connected to an extruder 2 via a line 3a.
  • a dosing unit 4 here exemplary a powder dosing unit, is connected via a line 3b to said extruder, wherein lines 3a and 3b are combined to form a line 3c that enters into a unit 5 for inserting a slurry into the extruder 3, for example here a screw pump.
  • Said unit may be additionally provided with a flow-measuring system (not shown in Fig. 1 ).
  • a monitoring unit 9 is provided, here an in-line monitoring unit such as a NIR monitoring unit, is provided for analysing the slurry coming through line 3a. If it is determined that the composition of the slurry should be modified, the dosing unit 4 can release additional material (e.g. water or protein powder) through line 3b into the extruder 2.
  • additional material e.g. water or protein powder
  • the extruder 2 comprises a motor 2b for operating at least one screw (not shown).
  • the motor 2a is provided on a support 2b.
  • the extruder 2 furthermore comprises barrel housings 2c in which at least one screw (not shown) is provided.
  • the extruder 2 comprises 8 barrel housings 2c. As discussed above, however, it possible to reduce the number of barrel housings by 1 to 4 barrel housings, since the slurry enters the extruder typically in an already heated state, so that less heating has to be performed in the extruder 2.
  • the line 3c enters into the first barrel housing 2c.
  • the slurry may first enter into a preconditioner, to be preconditioned therein, and only then transferred from said preconditioner into the first barrel housing 2c of the extruder 2.
  • the slurry is processed in the extruder 2, and subsequently is transferred through a distributor unit 6 into a cooling die 7, where the extruded slurry is cooled to a desired temperature.
  • a cooling die is described, for example, in EP-3 524 059 A1 .
  • the cooling die 7 is here provided on a cooling die support 8, which in this embodiment is designed as movable carrier for transporting the cooling die 7 to a remote location for e.g. maintenance or cleaning.
  • a movable carrier is described, for example, in WO 2020/249658 A1 .
  • the cooled slurry extrudate is released through an outlet 7a of the cooling die 7, and can be further process (e.g. shaped in a mold) in a conventionally known manner.
  • Fig. 2 shows an exemplary illustration of an embodiment of a device for preparing a slurry 10 in the form of a process line in the system 1 of the present invention.
  • the process line in Fig. 2 is an example designed for the preparation of a slurry from plant material, for example peas.
  • the process line in the embodiment of Fig. 2 comprises a storage unit 10a, in which the raw material, for example peas, are stored and can be transferred to a dehulling unit 10b.
  • the dehulling unit 10b the material is dehulled and optionally milled.
  • the material is then transferred to a decanting unit 10c for a purification of the material from unsuitable material parts.
  • the material is then transferred to a heating unit 10d for typically gentle heating.
  • a high-moisture slurry is present in the process line.
  • the high-moisture slurry may be led to line 3a which leads to the extruder 2.
  • the high-moisture slurry may be led into a centrifugation unit 10e (or other drying unit), where a substantial amount of moisture is removed from the slurry. Accordingly, after the unit 10e, a low-moisture slurry is present in the process line. Through a by-pass valve 10i, the low-moisture slurry may be led to line 3a which leads to the extruder 2.
  • a subsequent spray-drying unit 10f and packaging unit 10 g are indicated in dotted lines, illustrating the location where in a conventional process line those units would be present. According to the present invention, it is not necessary to provide those units in the process line.

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Nutrition Science (AREA)
  • Biochemistry (AREA)
  • Molecular Biology (AREA)
  • Manufacturing & Machinery (AREA)
  • Meat, Egg Or Seafood Products (AREA)
  • Fodder In General (AREA)
EP22157764.6A 2022-02-21 2022-02-21 Procédé d'extrusion de concentré ou d'isolat de protéines liquides Pending EP4230054A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP22157764.6A EP4230054A1 (fr) 2022-02-21 2022-02-21 Procédé d'extrusion de concentré ou d'isolat de protéines liquides
PCT/EP2023/054319 WO2023156681A1 (fr) 2022-02-21 2023-02-21 Procédé d'extrusion pour concentré ou isolat de protéine liquide
CN202380020720.1A CN118678886A (zh) 2022-02-21 2023-02-21 用于液体蛋白质浓缩物或分离物的挤出方法

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Application Number Priority Date Filing Date Title
EP22157764.6A EP4230054A1 (fr) 2022-02-21 2022-02-21 Procédé d'extrusion de concentré ou d'isolat de protéines liquides

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EP4230054A1 true EP4230054A1 (fr) 2023-08-23

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EP22157764.6A Pending EP4230054A1 (fr) 2022-02-21 2022-02-21 Procédé d'extrusion de concentré ou d'isolat de protéines liquides

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EP (1) EP4230054A1 (fr)
CN (1) CN118678886A (fr)
WO (1) WO2023156681A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5714187A (en) * 1993-06-02 1998-02-03 Buhler Ag Screw extruder and process for controlling the quality of feedstuff products
DE69419348T2 (de) * 1993-04-23 1999-11-04 Societe Des Produits Nestle S.A., Vevey Fleischähnliches Produkt auf der Basis von pflanzlichen Proteinen und Verfahren zu dessen Herstellung
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DE60024137T2 (de) * 1999-12-28 2006-08-03 Colgate-Palmolive Co. Haustierfutterzusammensetzungen mit hohem fleischgehalt
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